alpha rhythm

(redirected from alpha activity)
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Related to alpha activity: alpha rhythm
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Synonyms for alpha rhythm

the normal brainwave in the electroencephalogram of a person who is awake but relaxed

References in periodicals archive ?
30), alpha activity detected in euthymia was found to be lower in cases with BD than that in healthy controls.
The higher the alpha activity before the passive training, the better the people learned.
Kubitz and Mott (1996) found no change in either alpha or beta activity from pre-to post-exercise, but did observe reductions in alpha activity and increases in beta activity during exercise.
Then, Foxe says, alpha activity dropped precipitously if a person had gotten theanine--especially in combination with caffeine--indicating that idling neurons had suddenly revved up their activity.
Alpha activity is thought to be important for the ability to focus attention.
Hatfield went on to complete a series of studies to more thoroughly investigate changes in alpha activity as elite marksmen prepared to fire their rifles.
In addition, the unopposed alpha activity led to vasoconstriction, thereby worsening peripheral blood flow, exacerbating diabetic foot problems, promoting erectile dysfunction, and causing fatigue.
Patients with Alzheimer's disease tend to show a slowing of alpha activity below 8 Hz, a decrease in alpha activity, a decrease in the alpha to theta ratio, an increase in theta activity, and an increase in delta activity.